client/src/utils/array.js

   1 // Remove item(s) in array (if present)
   2 export function remove(array, rfun, all)
   3 {
   4   const index = array.findIndex(rfun);
   5   if (index >= 0)
   6   {
   7     array.splice(index, 1);
   8     if (!!all)
   9     {
  10       // Reverse loop because of the splice below
  11       for (let i=array.length-1; i>=index; i--)
  12       {
  13         if (rfun(array[i]))
  14           array.splice(i, 1);
  15       }
  16     }
  17   }
  18 }
  19
  20 // Double array intialization
  21 export function init(size1, size2, initElem)
  22 {
  23   return [...Array(size1)].map(e => Array(size2).fill(initElem));
  24 }
  25
  26 export function range(max)
  27 {
  28   return [...Array(max).keys()];
  29 }